There is no such model listed on the Asus website: http://support.asus.com/download/dow...del=P5KPL-VM/S
That's usually an indication of one of the following 2 conditions:
1: You typed an incorrect or incomplete model number
2: It's an OEM motherboard built specifically (by Asus) for some OEM computer maker.
If the latter (#2), Asus does not offer support for OEM boards to end users. Support must come from the company who built your computer/motherboard.
If you care to post computer/motherboard info, perhaps we can help. Or if it has the same hardware as a P5KPL-VM
motherboard, you can download drivers from Asus, otherwise you'll need to visit the website of your computer maker.